Last reviewed · How we verify

NCT01571635

Study to Determine the Safety and Tolerability of Sotatercept (ACE-011) in Adults With Beta( β)- Thalassemia.

Terminated Phase 2 Results posted Last updated 18 June 2023
What this trial tests

Phase 2 trial testing SOTATERCEPT (ACE-011) in Beta Thalassemia Major in 46 participants. Terminated before completion.

Timeline
10 October 2012
Primary endpoint
2 July 2015
24 May 2022

Quick facts

Lead sponsorCelgene
PhasePhase 2
StatusTerminated
Study typeINTERVENTIONAL
Allocationnon randomized
Designparallel
Maskingnone
Primary purposetreatment
Enrollment46
Start date10 October 2012
Primary completion2 July 2015
Estimated completion24 May 2022
Sites18 locations across France, United Kingdom, Greece, Italy

Drugs / interventions tested

Conditions studied

Sponsor

Celgene — full company profile →

Who can join

18 and older, any sex, with Beta Thalassemia Major or Beta Thalassemia Intermedia. Patients with the condition only — healthy volunteers not accepted.

Results — posted to ClinicalTrials.gov

Per-arm endpoint measurements with 95% confidence intervals where reported. Source: trial results section.

Potential Recommended Dose as Determined by Number of Participants Experiencing Dose-Limiting Toxicities and Recommended Dose Primary · From first dose up to 28 days post the first dose

Number of participants with dose-limiting toxicities (DLT) are used to determine the potential recommended dose (PRD). PRD is defined as the highest dose with up to 1 out of 6 patients experiencing a DLT. DLT is defined as any side effects of the study treatment serious enough to prevent an increase in dose or level of treatment, including at least one of the following: Hypertension ≥ Grade 3 per National Cancer Institute (NCI) Common Terminology Criteria for Adverse Events (CTCAE) version 4.0; Hgb \> 14 g/dL sustained for four weeks; any NCI CTCAE toxicity ≥ Grade 3. Grade 3 is defined as sev

GroupValue95% CI
Dose Level 1a: 0.1 mg/kg0
Dose Level 1b: 0.3 mg/kg0
Dose Level 2: 0.5 mg/kg0
Dose Level 3: 0.75 mg/kg0
Dose Level 4: 1 mg/kg0
Number of Participants With Red Blood Cell Transfusion Burden Reduction From Baseline During Treatment Secondary · From baseline to the last dose of study treatment (up to approximately 112 months)

Transfusion burden at baseline is defined as the total number of units of RBC transfusions that participants received within 168 days (24 weeks) prior to the first dose of study therapy. Transfusion burden during treatment is defined as the total number of RBC transfusion units that each participant received during the treatment divided by the treatment duration and multiplied by 168 days. The result is a 168-day transfusion burden average. Baseline measurement includes RBC transfusion history for transfusion dependent and non-transfusion dependent participants, starting at 168 days prior to e

≥ 25% reduction
GroupValue95% CI
Dose Level 1a: 0.1 mg/kg0
Dose Level 1b: 0.3 mg/kg0
Dose Level 2: 0.5 mg/kg2
Dose Level 3: 0.75 mg/kg4
Dose Level 4: 1 mg/kg3
≥ 33% reduction
GroupValue95% CI
Dose Level 1a: 0.1 mg/kg0
Dose Level 1b: 0.3 mg/kg0
Dose Level 2: 0.5 mg/kg2
Dose Level 3: 0.75 mg/kg3
Dose Level 4: 1 mg/kg1
≥ 50% reduction
GroupValue95% CI
Dose Level 1a: 0.1 mg/kg0
Dose Level 1b: 0.3 mg/kg0
Dose Level 2: 0.5 mg/kg1
Dose Level 3: 0.75 mg/kg2
Dose Level 4: 1 mg/kg0
Number of Participants With Hemoglobin Level Increase From Baseline in Non-Transfusion Dependent B-Thalassemia Intermedia Participants Secondary · Measurements were taken in 9 and 12-week intervals, from baseline up to approximately 112 months

The Number of participants with a change in Hemoglobin levels will be listed for non-RBC transfusion dependent participants. Baseline assessments are the average of the last two measurements prior to the start of therapy.

9-week episode with Hgb ≥ 1.0 g/dl change from baseline (non-transfusion dependent participants)
GroupValue95% CI
Dose Level 1a: 0.1 mg/kg0
Dose Level 1b: 0.3 mg/kg5
Dose Level 2: 0.5 mg/kg4
Dose Level 3: 0.75 mg/kg6
Dose Level 4: 1 mg/kg2
9-week episode with Hgb ≥ 1.5 g/dl change from baseline (non-transfusion dependent participants)
GroupValue95% CI
Dose Level 1a: 0.1 mg/kg0
Dose Level 1b: 0.3 mg/kg2
Dose Level 2: 0.5 mg/kg2
Dose Level 3: 0.75 mg/kg6
Dose Level 4: 1 mg/kg1
12-Week episode with Hgb ≥ 1.0 g/dl change from baseline (non-transfusion dependent participants)
GroupValue95% CI
Dose Level 1a: 0.1 mg/kg0
Dose Level 1b: 0.3 mg/kg4
Dose Level 2: 0.5 mg/kg4
Dose Level 3: 0.75 mg/kg6
Dose Level 4: 1 mg/kg1
12-Week episode with Hgb ≥ 1.5 g/dl change from baseline (non-transfusion dependent participants)
GroupValue95% CI
Dose Level 1a: 0.1 mg/kg0
Dose Level 1b: 0.3 mg/kg2
Dose Level 2: 0.5 mg/kg2
Dose Level 3: 0.75 mg/kg6
Dose Level 4: 1 mg/kg1
Number of Participants Experiencing Adverse Events (AEs) Secondary · From first dose up to 112 days after the last dose of study treatment (up to 115 months)

An Adverse Event (AE) is defined as any new untoward medical occurrence or worsening of a pre-existing medical condition in a clinical investigation participant administered study treatment and that does not necessarily have a causal relationship with this treatment. Adverse events are graded on a scale from 1 to 5, with Grade 1 being mild and asymptomatic; Grade 2 is moderate requiring minimal, local or noninvasive intervention; Grade 3 is severe or medically significant but not immediately life-threatening; Grade 4 events are usually severe enough to require hospitalization; Grade 5 events a

Participants with at least one TEAE
GroupValue95% CI
Dose Level 1a: 0.1 mg/kg8
Dose Level 1b: 0.3 mg/kg9
Dose Level 2: 0.5 mg/kg8
Dose Level 3: 0.75 mg/kg12
Dose Level 4: 1 mg/kg9
TEAE leading to dose interruption
GroupValue95% CI
Dose Level 1a: 0.1 mg/kg2
Dose Level 1b: 0.3 mg/kg5
Dose Level 2: 0.5 mg/kg4
Dose Level 3: 0.75 mg/kg2
Dose Level 4: 1 mg/kg5
Participants with at least one serious TEAE
GroupValue95% CI
Dose Level 1a: 0.1 mg/kg3
Dose Level 1b: 0.3 mg/kg3
Dose Level 2: 0.5 mg/kg3
Dose Level 3: 0.75 mg/kg3
Dose Level 4: 1 mg/kg3
Participants with at least one grade 2/3/4 TEAE
GroupValue95% CI
Dose Level 1a: 0.1 mg/kg7
Dose Level 1b: 0.3 mg/kg9
Dose Level 2: 0.5 mg/kg6
Dose Level 3: 0.75 mg/kg11
Dose Level 4: 1 mg/kg9
Participants with at least one drug-related grade 2/3/4 TEAE
GroupValue95% CI
Dose Level 1a: 0.1 mg/kg4
Dose Level 1b: 0.3 mg/kg3
Dose Level 2: 0.5 mg/kg4
Dose Level 3: 0.75 mg/kg7
Dose Level 4: 1 mg/kg7
Participants with at least one serious drug- related TEAE
GroupValue95% CI
Dose Level 1a: 0.1 mg/kg2
Dose Level 1b: 0.3 mg/kg1
Dose Level 2: 0.5 mg/kg1
Dose Level 3: 0.75 mg/kg0
Dose Level 4: 1 mg/kg1
Participants with at least one TEAE leading to sotatercept withdrawal
GroupValue95% CI
Dose Level 1a: 0.1 mg/kg3
Dose Level 1b: 0.3 mg/kg0
Dose Level 2: 0.5 mg/kg2
Dose Level 3: 0.75 mg/kg3
Dose Level 4: 1 mg/kg5
Concentrations of Sotatercept in Serum Secondary · Dose 1, Day 8; Dose 1, Day 15; Dose 2, Day 1; Dose 2, Day 8; Dose 3, Day 1; Dose 3, Day 8; Dose 4, Day 1; Dose 5, Day 1; Dose 6, Day 1

Sotatercept was administered as a subcutaneous injection every 21 days during the Treatment Period. Pharmacokinetic (PK) samples were collected at the pre-specified timepoints.

Dose 1, Day 8
GroupValue95% CI
Dose Level 1a: 0.1 mg/kg598.3289.2 – 1345.4
Dose Level 1b: 0.3 mg/kg1454.051006.6 – 2768.3
Dose Level 2: 0.5 mg/kg3045.451586.7 – 4480
Dose Level 3: 0.75 mg/kg5837.653238.1 – 10590.5
Dose Level 4: 1 mg/kg38742264.9 – 7003
Dose 1, Day 15
GroupValue95% CI
Dose Level 1a: 0.1 mg/kg388.798.4 – 1046
Dose Level 1b: 0.3 mg/kg1150.1550.3 – 2158.4
Dose Level 2: 0.5 mg/kg2329.75952 – 3005.5
Dose Level 3: 0.75 mg/kg4279.652107.8 – 6692
Dose Level 4: 1 mg/kg2405.61825.3 – 4605.5
Dose 2, Day 1
GroupValue95% CI
Dose Level 1a: 0.1 mg/kg294.75112.9 – 547.1
Dose Level 1b: 0.3 mg/kg770.3317.2 – 1300.1
Dose Level 2: 0.5 mg/kg1468.05682 – 2550.5
Dose Level 3: 0.75 mg/kg2955.21257.5 – 4450.8
Dose Level 4: 1 mg/kg1701.5888.6 – 4267.9
Dose 2, Day 8
GroupValue95% CI
Dose Level 1a: 0.1 mg/kg683.1250.1 – 1210.6
Dose Level 1b: 0.3 mg/kg20651363.7 – 3626.4
Dose Level 2: 0.5 mg/kg4136.81661.9 – 5573.8
Dose Level 3: 0.75 mg/kg7753.355046.4 – 8805.6
Dose Level 4: 1 mg/kg5148.13537.4 – 10418.7
Dose 3, Day 1
GroupValue95% CI
Dose Level 1a: 0.1 mg/kg325.35228.8 – 790
Dose Level 1b: 0.3 mg/kg956.8380.6 – 1552.6
Dose Level 2: 0.5 mg/kg2157.3422 – 3088.4
Dose Level 3: 0.75 mg/kg3628.45653.5 – 6429.1
Dose Level 4: 1 mg/kg2602.6822.2 – 5668.1
Dose 3, Day 8
GroupValue95% CI
Dose Level 1a: 0.1 mg/kg758.1444 – 1232
Dose Level 1b: 0.3 mg/kg2319.91475.6 – 3667.4
Dose Level 2: 0.5 mg/kg4507.32077.8 – 5762.3
Dose Level 3: 0.75 mg/kg8373.055345.5 – 12177.8
Dose Level 4: 1 mg/kg6050.83892.5 – 12139.6
Dose 4, Day 1
GroupValue95% CI
Dose Level 1a: 0.1 mg/kg334.85298 – 1014.9
Dose Level 1b: 0.3 mg/kg1022.3348.8 – 2096.9
Dose Level 2: 0.5 mg/kg2441.6784 – 2845.3
Dose Level 3: 0.75 mg/kg4137.11447.1 – 6126.6
Dose Level 4: 1 mg/kg2869.21478.9 – 4787.7
Dose 5, Day 1
GroupValue95% CI
Dose Level 1a: 0.1 mg/kg385.1287.5 – 467.5
Dose Level 1b: 0.3 mg/kg1473.9762.1 – 2764.4
Dose Level 2: 0.5 mg/kg1618.8953.4 – 3440
Dose Level 3: 0.75 mg/kg4449.72340.4 – 5887.8
Dose Level 4: 1 mg/kg30481125.5 – 6529.3
Number of Participants With Anti-Drug Antibody (ADA) Secondary · From first dose up to 4 months after last dose (up to approximately 116 months)

The number of participants with Anti-Sotatercept Antibody is a summary of antidrug antibody (ADA) status for ADA-evaluated participants. A participant is counted as 'positive' if there is any positive result captured during the study, a participant is counted as 'negative' if there is no positive result captured during the study. ADA data was collected Day 1 in dose schedules 1 through 6. Starting from Dose 7, ADA was measured at Day 1 every 3 Doses, then finally at the post-treatment follow-up visit at Month 2 and Month 4.

Negative
GroupValue95% CI
Dose Level 1a: 0.1 mg/kg8
Dose Level 1b: 0.3 mg/kg8
Dose Level 2: 0.5 mg/kg8
Dose Level 3: 0.75 mg/kg10
Dose Level 4: 1 mg/kg9
Positive
GroupValue95% CI
Dose Level 1a: 0.1 mg/kg0
Dose Level 1b: 0.3 mg/kg1
Dose Level 2: 0.5 mg/kg0
Dose Level 3: 0.75 mg/kg2
Dose Level 4: 1 mg/kg0

Adverse events — posted to ClinicalTrials.gov

Time frame: Participants were assessed for all-cause mortality from their enrollment to study completion, (up to approximately 115 months). SAEs and Other AEs were assessed from first dose to 112 days following last dose (up to approximately 115 months). Reporting threshold: 5%. Adverse-event reports describe events observed during the trial — not all are caused by the drug.

Dose Level 1a: 0.1 mg/kg
Serious: 3/8 (38%)
Deaths: 0/8
Dose Level 1b: 0.3 mg/kg
Serious: 3/9 (33%)
Deaths: 0/9
Dose Level 2: 0.5 mg/kg
Serious: 3/8 (38%)
Deaths: 0/8
Dose Level 3: 0.75 mg/kg
Serious: 3/12 (25%)
Deaths: 0/12
Dose Level 4: 1 mg/kg
Serious: 3/9 (33%)
Deaths: 0/9

Serious adverse events (29 terms)

ReactionSystemDose Level 1a: 0.1 mg/kgDose Level 1b: 0.3 mg/kgDose Level 2: 0.5 mg/kgDose Level 3: 0.75 mg/kgDose Level 4: 1 mg/kg
ANAEMIABlood and lymphatic system disorders
EXTRAMEDULLARY HAEMOPOIESISBlood and lymphatic system disorders
SPLENIC INFARCTIONBlood and lymphatic system disorders
PERICARDIAL EFFUSIONCardiac disorders
ABDOMINAL PAIN UPPERGastrointestinal disorders
SUBILEUSGastrointestinal disorders
FATIGUEGeneral disorders
LOCAL SWELLINGGeneral disorders
PYREXIAGeneral disorders
ANAPHYLACTIC REACTIONImmune system disorders
BACTERIAL PROSTATITISInfections and infestations
CORONA VIRUS INFECTIONInfections and infestations
LOWER RESPIRATORY TRACT INFECTIONInfections and infestations
PHARYNGOTONSILLITISInfections and infestations
SUBCUTANEOUS ABSCESSInfections and infestations
FALLInjury, poisoning and procedural complications
FOREARM FRACTUREInjury, poisoning and procedural complications
LUMBAR VERTEBRAL FRACTUREInjury, poisoning and procedural complications
PELVIC FRACTUREInjury, poisoning and procedural complications
PUBIS FRACTUREInjury, poisoning and procedural complications
ULNA FRACTUREInjury, poisoning and procedural complications
UPPER LIMB FRACTUREInjury, poisoning and procedural complications
BONE PAINMusculoskeletal and connective tissue disorders
MUSCULAR WEAKNESSMusculoskeletal and connective tissue disorders
HEPATIC NEOPLASMNeoplasms benign, malignant and unspecified (incl cysts and polyps)
Other adverse events (368 terms — click to expand)

ReactionSystemDose Level 1a: 0.1 mg/kgDose Level 1b: 0.3 mg/kgDose Level 2: 0.5 mg/kgDose Level 3: 0.75 mg/kgDose Level 4: 1 mg/kg
HEADACHENervous system disorders
ARTHRALGIAMusculoskeletal and connective tissue disorders
BACK PAINMusculoskeletal and connective tissue disorders
PYREXIAGeneral disorders
BONE PAINMusculoskeletal and connective tissue disorders
ABDOMINAL PAIN UPPERGastrointestinal disorders
ASTHENIAGeneral disorders
INFLUENZAInfections and infestations
RHINITISInfections and infestations
NECK PAINMusculoskeletal and connective tissue disorders
PAIN IN EXTREMITYMusculoskeletal and connective tissue disorders
COUGHRespiratory, thoracic and mediastinal disorders
OROPHARYNGEAL PAINRespiratory, thoracic and mediastinal disorders
HYPERTENSIONVascular disorders
DIARRHOEAGastrointestinal disorders
NAUSEAGastrointestinal disorders
TOOTHACHEGastrointestinal disorders
FATIGUEGeneral disorders
INFLUENZA LIKE ILLNESSGeneral disorders
BRONCHITISInfections and infestations
NASOPHARYNGITISInfections and infestations
ORAL HERPESInfections and infestations
UPPER RESPIRATORY TRACT INFECTIONInfections and infestations
MUSCULOSKELETAL PAINMusculoskeletal and connective tissue disorders
MYALGIAMusculoskeletal and connective tissue disorders
EPISTAXISRespiratory, thoracic and mediastinal disorders
NASAL CONGESTIONRespiratory, thoracic and mediastinal disorders
ABDOMINAL PAINGastrointestinal disorders
CONSTIPATIONGastrointestinal disorders
SERUM FERRITIN INCREASEDInvestigations
MUSCULOSKELETAL CHEST PAINMusculoskeletal and connective tissue disorders
DIZZINESSNervous system disorders
EXTRAMEDULLARY HAEMOPOIESISBlood and lymphatic system disorders
LYMPHADENOPATHYBlood and lymphatic system disorders
PALPITATIONSCardiac disorders
TACHYCARDIACardiac disorders
EAR PAINEar and labyrinth disorders
TINNITUSEar and labyrinth disorders
ABDOMINAL PAIN LOWERGastrointestinal disorders
DYSPEPSIAGastrointestinal disorders

Most-reported serious reactions: ANAEMIA, EXTRAMEDULLARY HAEMOPOIESIS, SPLENIC INFARCTION, PERICARDIAL EFFUSION, ABDOMINAL PAIN UPPER, SUBILEUS, FATIGUE, LOCAL SWELLING.

Data from ClinicalTrials.gov NCT01571635 adverse events section.

Sponsor's own description

Dose finding study to determine the safety and tolerability of Sotatercept (ACE-011) in adults with Beta (β)-Thalassemia

Publications & conference data

8 peer-reviewed publications reference this trial (live from Europe PMC):

  1. Clinical development of galunisertib (LY2157299 monohydrate), a small molecule inhibitor of transforming growth factor-beta signaling pathway.
    Herbertz S, Sawyer JS, Stauber AJ, Gueorguieva I, et al · · 2015 · cited 424× · PMID 26309397 · DOI 10.2147/dddt.s86621
  2. An activin receptor IIA ligand trap corrects ineffective erythropoiesis in β-thalassemia.
    Dussiot M, Maciel TT, Fricot A, Chartier C, et al · · 2014 · cited 230× · PMID 24658077 · DOI 10.1038/nm.3468
  3. Iron metabolism: pathophysiology and pharmacology.
    Roemhild K, von Maltzahn F, Weiskirchen R, Knüchel R, et al · · 2021 · cited 188× · PMID 34090703 · DOI 10.1016/j.tips.2021.05.001
  4. TGF-beta signal transduction: biology, function and therapy for diseases.
    Tie Y, Tang F, Peng D, Zhang Y, et al · · 2022 · cited 97× · PMID 36534225 · DOI 10.1186/s43556-022-00109-9
  5. Erythropoiesis: insights into pathophysiology and treatments in 2017.
    Zivot A, Lipton JM, Narla A, Blanc L. · · 2018 · cited 97× · PMID 30134792 · DOI 10.1186/s10020-018-0011-z
  6. Sotatercept, a novel transforming growth factor β ligand trap, improves anemia in β-thalassemia: a phase II, open-label, dose-finding study.
    Cappellini MD, Porter J, Origa R, Forni GL, et al · · 2019 · cited 62× · PMID 30337358 · DOI 10.3324/haematol.2018.198887
  7. The role of TGFβ in hematopoiesis and myeloid disorders.
    Bataller A, Montalban-Bravo G, Soltysiak KA, Garcia-Manero G. · · 2019 · cited 57× · PMID 30816330 · DOI 10.1038/s41375-019-0420-1
  8. Beta Thalassemia: New Therapeutic Options Beyond Transfusion and Iron Chelation.
    Motta I, Bou-Fakhredin R, Taher AT, Cappellini MD. · · 2020 · cited 54× · PMID 32557398 · DOI 10.1007/s40265-020-01341-9

Verify or expand the search:

Other recruiting trials for Beta Thalassemia Major

Currently open trials in the same condition.

Other Celgene trials

Trials by the same sponsor.

Verify against primary sources

Data sources for this page

Drug Landscape aggregates and links these public records for informational use only. Always verify against the primary source before clinical or regulatory decisions. Canonical URL: https://druglandscape.com/trial/NCT01571635.

Primary sources · FDA · ClinicalTrials.gov · EMA · SEC EDGAR · ChEMBL · Wikidata · full sourcing